CN112942056B - Assembled bridge truss - Google Patents
Assembled bridge truss Download PDFInfo
- Publication number
- CN112942056B CN112942056B CN202110173637.0A CN202110173637A CN112942056B CN 112942056 B CN112942056 B CN 112942056B CN 202110173637 A CN202110173637 A CN 202110173637A CN 112942056 B CN112942056 B CN 112942056B
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- Prior art keywords
- rod
- connecting rod
- down tube
- sliding
- rectangular frames
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D6/00—Truss-type bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an assembly type bridge truss, which belongs to the technical field of assembly type bridges and comprises four longitudinal beams, a plurality of rectangular frames, frame connecting assemblies and pressing plates, wherein the rectangular frames are used for connecting the four longitudinal beams, the four longitudinal beams are respectively arranged at four corners of the rectangular frames, the rectangular frames are uniformly arranged at intervals along the length direction of the longitudinal beams, and the frame connecting assemblies are arranged on the side surfaces of the rectangular frames and are used for connecting two adjacent rectangular frames. The device can be assembled and disassembled quickly, is suitable for horizontal pushing and erecting of the cantilever, and has the advantages of high standardization degree, small packaging and transportation volume and lower cost.
Description
Technical Field
The invention belongs to the technical field of assembled bridges, and particularly relates to an assembled bridge truss.
Background
China is wide in territory, and disasters such as earthquake, flood, storm (snow), debris flow and the like sometimes occur to cause corresponding bridge damage and traffic interruption. In the face of large-scale natural disasters, the time is life, the damaged bridge is rapidly repaired, and the recovery of traffic lifelines becomes the first task of rescue and relief, the maximum single-hole span of the traditional emergency steel bridge is less than 69 meters, the number of the assembly units is large, the assembly and erection time is long, the requirement of the emergency rescue and relief on a large-span assembly type bridge is not met, an assembly type bridge truss is urgently needed, the standardization degree is high, the packaging and transportation volume is small, and the assembly type bridge truss can be rapidly assembled and disassembled and is suitable for cantilever flat-pushing erection.
Disclosure of Invention
In view of the above, the present invention provides an assembled bridge truss, which can be assembled and disassembled quickly, is suitable for horizontal pushing and erecting of a cantilever, and has the advantages of high standardization, small volume for packaging and transportation, and low cost.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention discloses an assembly type bridge truss, which comprises four longitudinal beams, a plurality of rectangular frames, frame connecting assemblies and a pressing plate, wherein the rectangular frames are used for connecting the four longitudinal beams, the four longitudinal beams are respectively arranged at four corners of the rectangular frames, the rectangular frames are uniformly arranged at intervals along the length direction of the longitudinal beams, and the frame connecting assemblies are arranged on the side surfaces of the rectangular frames and are used for connecting two adjacent rectangular frames; the rectangular frame comprises four sleeves, an upper ejector rod, a left side rod, a lower bottom rod and a right side rod, the four sleeves are sequentially connected with the four sleeves, the four sleeves are respectively sleeved on the outer sides of the four longitudinal beams, the middle parts of the upper ejector rod and the lower bottom rod can be bent inwards, the upper ejector rod comprises a first connecting rod and a second connecting rod, the inner ends of the first connecting rod and the second connecting rod are hinged with each other, the outer ends of the first connecting rod and the second connecting rod are respectively hinged with the two sleeves on the upper part, the middle parts of the first connecting rod and the second connecting rod are respectively connected with the left side rod and the right side rod through a first supporting assembly and a second supporting assembly, and the first supporting assembly and the second supporting assembly are symmetrical relative to the center of the rectangular frame; the first supporting component comprises a sliding connecting rod, the middle of the first connecting rod is hinged to one end of the sliding connecting rod, the other end of the sliding connecting rod can slide along the length direction of the left side rod, the sliding connecting rod and the left side rod are locked through a locking device, and the pressing plate is laid on the upper side of the lower bottom rod.
Furthermore, the lower bottom rod comprises a third connecting rod and a fourth connecting rod, the inner ends of the third connecting rod and the fourth connecting rod are hinged with each other, the outer ends of the third connecting rod and the fourth connecting rod are hinged with the two sleeves at the lower part respectively, and a limiting part for limiting the lower bottom rod to bend outwards is arranged on the fourth connecting rod.
Further, the longeron is formed by splicing in proper order a plurality of connection quarter butts and intermediate lever, the both ends of connecting the quarter butt separate through the baffle and have logical groove, and the cooperation of leading to the groove between the adjacent two connection quarter butts makes the intermediate lever can imbed wherein, be connected through the screw rod between intermediate lever and the baffle.
Further, the lower part of the connecting short rod is provided with an installation window for installing the screw rod.
Furthermore, the locking device comprises a sliding connection seat, a sliding rod and a nut, a sliding groove is formed in the left side rod, the sliding rod is fixedly arranged in the sliding connection seat, two ends of the sliding rod are slidably arranged in the sliding groove, and the nut is in threaded connection with the sliding rod to lock the sliding rod.
Further, the lower extreme of spout is provided with the draw-in groove, the draw-in groove along the horizontal setting of spout, the draw-in groove can be used to the chucking the slide bar.
Further, frame coupling assembling includes first down tube and the second down tube of cross arrangement, the middle part of first down tube and second down tube is articulated each other, rectangular frame's lower part is provided with articulated seat, the lower extreme of first down tube and second down tube respectively with articulated seat is articulated, the upper portion of first down tube and second down tube intersect the back respectively with the slide bar is articulated.
Further, the structure of first down tube and second down tube is the same, first down tube includes the down tube body, the open slot that is used for rotating to give way is offered at the middle part of down tube body, first hinge groove and second hinge groove have been seted up respectively to the upper end and the lower extreme of down tube body.
The invention has the beneficial effects that:
the middle parts of the upper ejector rod and the lower ejector rod can be bent inwards, so that the rectangular frames can be folded together through the left side rod and the right measuring rod, the middle parts of the first connecting rod and the second connecting rod are respectively connected with the left side rod and the right side rod through the first supporting assembly and the second supporting assembly, the first connecting rod and the second connecting rod can be used for carrying out triangular support when in use, and the strength of the whole frame is improved. The pressing plate is laid on the upper side of the lower bottom rod, and the lower bottom rod is normally extended through self load or load of an upper cement road surface and cannot be bent when the lower bottom rod is used.
Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic structural view of a lower bottom bar;
FIG. 4 is a schematic structural view of a stringer;
FIG. 5 is a schematic view of a frame connecting assembly;
fig. 6 is a schematic drawing of a rectangular frame in a contracted state.
The drawings are numbered as follows: the connecting structure comprises a longitudinal beam 1, a connecting short rod 11, a middle rod 12, a through groove 13, a screw rod 14, a partition plate 15, a mounting window 16, a rectangular frame 2, a sleeve 21, an upper top rod 22, a first connecting rod 221, a second connecting rod 222, a left side rod 23, a lower bottom rod 24, a third connecting rod 241, a fourth connecting rod 242, a limiting part 243, a right side rod 25, a first supporting component 26, a sliding connecting rod 261, a sliding connecting seat 262, a sliding rod 263, a nut 264, a second supporting component 27, a frame connecting component 3, a first inclined rod 31, an inclined rod body 311, an open groove 312, a first hinge groove 313, a second hinge groove 314, a second inclined rod 32, a pressing plate 4, a sliding groove 5, a clamping groove 6 and a hinge seat 7.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the description of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, shown in the drawings are schematic representations and not in the form of actual drawings; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 6, the assembly type bridge truss comprises four longitudinal beams 1, a plurality of rectangular frames 2, a frame connecting assembly 3 and a pressing plate 4, wherein the extending direction of the longitudinal beams 1 is the length direction of a bridge, the rectangular frames 2 are used for connecting the four longitudinal beams 1, the four longitudinal beams 1 are respectively arranged at four corners of the rectangular frames 2, the rectangular frames 2 are evenly arranged along the length direction of the longitudinal beams 1 at intervals, and the frame connecting assembly 3 is arranged on the side surface of the rectangular frame 2 and is used for connecting two adjacent rectangular frames 2; the rectangular frame 2 comprises four sleeves 21, an upper top rod 22, a left side rod 23, a lower bottom rod 24 and a right side rod 25 which sequentially connect the four sleeves 21, the four sleeves 21 are respectively sleeved on the outer sides of the four longitudinal beams 1, the middle parts of the upper top rod 22 and the lower bottom rod 24 can be bent inwards, the upper top rod 22 comprises a first connecting rod 221 and a second connecting rod 222, the inner ends of the first connecting rod 221 and the second connecting rod 222 are hinged with each other, the outer ends of the first connecting rod 221 and the second connecting rod 222 are hinged with the two sleeves 21 on the upper part respectively, the middle parts of the first connecting rod 221 and the second connecting rod 222 are connected with the left side rod 23 and the right side rod 25 through a first supporting component 26 and a second supporting component 27 respectively, and the first supporting component 26 and the second supporting component 27 are symmetrical relative to the center of the rectangular frame 2; the first supporting assembly 26 comprises a sliding connecting rod 261, the middle part of the first connecting rod 221 is hinged with one end of the sliding connecting rod 261, the other end of the sliding connecting rod 261 can slide along the length direction of the left side rod 23, the sliding connecting rod 261 and the left side rod 23 are locked through a locking device, and the pressing plate 4 is laid on the upper side of the lower bottom rod 24.
The assembled bridge truss comprises four longitudinal beams 1, a plurality of rectangular frames 2, a frame connecting assembly 3 and a pressing plate 4, wherein the middle parts of an upper top rod 22 and a lower bottom rod 24 can be bent inwards, so that the rectangular frames 2 can be folded together through a left side rod 23 and a right side rod, the middle parts of a first connecting rod 221 and a second connecting rod 222 are respectively connected with the left side rod 23 and the right side rod 25 through a first supporting assembly 26 and a second supporting assembly 27, and the assembled bridge truss can be used for carrying out triangular support on the first connecting rod 221 and the second connecting rod 222 when in use, so that the strength of the whole frame is improved. The pressing plate 4 is laid on the upper side of the lower bottom rod 24, and the lower bottom rod 24 is normally extended and cannot be bent in use by the load of the lower bottom rod or the load of the upper cement pavement.
In this embodiment, the lower bottom bar 24 includes a third connecting rod 241 and a fourth connecting rod 242, inner ends of the third connecting rod 241 and the fourth connecting rod 242 are hinged to each other, outer ends of the third connecting rod 241 and the fourth connecting rod 242 are hinged to the two lower sleeves 21, respectively, and the fourth connecting rod 242 is provided with a limiting portion 243 for limiting the lower bottom bar 24 to bend outwards, so as to prevent the lower bottom bar 24 from bending outwards and deforming, and provide a certain supporting force for supporting a load, and of course, concrete can be cast in situ at the upper side of the pressing plate 4 in the following process, thereby improving the supporting strength of the road surface.
In this embodiment, longeron 1 is formed by splicing in proper order a plurality of connection quarter butt 11 and intermediate lever 12, connect the both ends of quarter butt 11 and separate through baffle 15 and have logical groove 13, and the cooperation of leading to groove 13 between the two adjacent connection quarter butt 11 makes intermediate lever 12 can imbed wherein, be connected through screw rod 14 between intermediate lever 12 and the baffle 15, through setting up intermediate lever 12 for the bending stress of seam crossing bears through intermediate lever 12, can increase the joint strength who connects between the quarter butt 11, through planar gomphosis, reduces the opening of connecting 11 seam crossings of quarter butt, makes the connection between longeron 1 more closely, increases the assembly precision.
In this embodiment, the lower portion of the short connecting rod 11 is provided with an installation window 16 for installing the screw 14, so that the threaded rod is convenient to install.
In this embodiment, the locking device includes a sliding connection seat 262, a sliding rod 263 and a nut 264, the sliding groove 5 is formed on the left side rod 23, the sliding rod 263 is fixedly disposed on the sliding connection seat 262, two ends of the sliding rod 263 are slidably disposed in the sliding groove 5, and the nut 264 is in threaded connection with the sliding rod 263 to lock the sliding rod 263. The lower extreme of spout 5 is provided with draw-in groove 6, draw-in groove 6 along the horizontal setting of spout 5, draw-in groove 6 can be used to the chucking slide bar 263, through shrink back chucking, when contracting rectangular frame 2, avoid its deformation that slides.
In this embodiment, the frame connecting assembly 3 includes the first down tube 31 and the second down tube 32 that are arranged crosswise, the middle parts of the first down tube 31 and the second down tube 32 are articulated with each other, the lower part of the rectangular frame 2 is provided with the articulated seat 7, the lower ends of the first down tube 31 and the second down tube 32 are articulated with the articulated seat 7 respectively, the upper parts of the first down tube 31 and the second down tube 32 are articulated with the sliding rod 263 respectively after being intersected.
In this embodiment, the structure of first down tube 31 and second down tube 32 is the same, first down tube 31 includes down tube body 311, open slot 312 that is used for rotating to give way is offered at the middle part of down tube body 311, first hinge groove 313 and second hinge groove 314 have been offered respectively to the upper end and the lower extreme of down tube body 311, and first hinge groove 313 and second hinge groove 314 are used for giving way the articulated position, can rotate relatively between first down tube 31 and the second down tube 32 for can contract between two adjacent rectangular frame 2, practice thrift the space.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. An assembled bridge truss which characterized in that: the four-corner connecting structure comprises four longitudinal beams, a plurality of rectangular frames, frame connecting assemblies and a pressing plate, wherein the rectangular frames are used for connecting the four longitudinal beams, the four longitudinal beams are respectively arranged at four corners of the rectangular frames, the rectangular frames are uniformly arranged at intervals along the length direction of the longitudinal beams, and the frame connecting assemblies are arranged on the side surfaces of the rectangular frames and are used for connecting two adjacent rectangular frames; the rectangular frame comprises four sleeves, an upper ejector rod, a left side rod, a lower bottom rod and a right side rod, the four sleeves are sequentially connected with the four sleeves, the four sleeves are respectively sleeved on the outer sides of the four longitudinal beams, the middle parts of the upper ejector rod and the lower bottom rod can be bent inwards, the upper ejector rod comprises a first connecting rod and a second connecting rod, the inner ends of the first connecting rod and the second connecting rod are hinged with each other, the outer ends of the first connecting rod and the second connecting rod are respectively hinged with the two sleeves on the upper part, the middle parts of the first connecting rod and the second connecting rod are respectively connected with the left side rod and the right side rod through a first supporting assembly and a second supporting assembly, and the first supporting assembly and the second supporting assembly are symmetrical relative to the center of the rectangular frame; the first support assembly comprises a sliding connecting rod, the middle part of the first connecting rod is hinged with one end of the sliding connecting rod, the other end of the sliding connecting rod can slide along the length direction of the left side rod, the sliding connecting rod and the left side rod are locked through a locking device, and the pressing plate is laid on the upper side of the lower bottom rod;
the locking device comprises a sliding connection seat, a sliding rod and a nut, a sliding groove is formed in the left side rod, the sliding rod is fixedly arranged on the sliding connection seat, two ends of the sliding rod are slidably arranged in the sliding groove, and the nut is in threaded connection with the sliding rod to lock the sliding rod; the lower end of the sliding groove is provided with a clamping groove which is arranged along the transverse direction of the sliding groove and can be used for clamping the sliding rod; frame coupling assembling includes first down tube and the second down tube of cross arrangement, the middle part of first down tube and second down tube is articulated each other, rectangular frame's lower part is provided with articulated seat, the lower extreme of first down tube and second down tube respectively with articulated seat is articulated, the upper portion of first down tube and second down tube intersect the back respectively with the slide bar is articulated.
2. The assembled bridge truss of claim 1 wherein: the lower bottom rod comprises a third connecting rod and a fourth connecting rod, the inner ends of the third connecting rod and the fourth connecting rod are hinged with each other, the outer ends of the third connecting rod and the fourth connecting rod are hinged with the two sleeves at the lower part respectively, and a limiting part for limiting the lower bottom rod to bend outwards is arranged on the fourth connecting rod.
3. The assembled bridge truss of claim 1 wherein: the longeron is formed by splicing in proper order a plurality of connection quarter butts and intermediate lever, the both ends of connecting the quarter butts separate through the baffle and have logical groove, and the cooperation of leading to the groove between the adjacent two connection quarter butts makes the intermediate lever can imbed wherein, be connected through the screw rod between intermediate lever and the baffle.
4. The assembled bridge truss of claim 3 wherein: and the lower part of the connecting short rod is provided with an installation window for installing the screw rod.
5. The fabricated bridge truss of any one of claims 1-4, wherein: the structure of first down tube and second down tube is the same, first down tube includes the down tube body, the open slot that is used for rotating to give way is offered at the middle part of down tube body, first hinge groove and second hinge groove have been seted up respectively to the upper end and the lower extreme of down tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110173637.0A CN112942056B (en) | 2021-02-09 | 2021-02-09 | Assembled bridge truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110173637.0A CN112942056B (en) | 2021-02-09 | 2021-02-09 | Assembled bridge truss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112942056A CN112942056A (en) | 2021-06-11 |
| CN112942056B true CN112942056B (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110173637.0A Active CN112942056B (en) | 2021-02-09 | 2021-02-09 | Assembled bridge truss |
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| Country | Link |
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| CN (1) | CN112942056B (en) |
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| DE3705652A1 (en) * | 1987-02-21 | 1988-09-01 | Salzgitter Ag | INSTALLATION BRIDGE |
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| Publication number | Publication date |
|---|---|
| CN112942056A (en) | 2021-06-11 |
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